Description of the new feature/enhancement

In xterm's control sequences, there are two codes for title stacking, \033[22;0t and \033[22;0t[1]. Supporting this code would entail implementing a stack where the terminal title can be saved by an application and then be restored later when the application exits.

Proposed technical implementation details (optional)

Having no understanding of the codebase, I can't suggest anything in the technical department. I can't even claim that most terminals implement these codes, so I can't reasonably demand that Windows Terminal should support them, but if it did, that would be awesome.